This wall mounting boom eliminates clutters in a studio. You never have to worry about accidents like lights tipping over or tripping over messy cables. It is a space saver; it practically disappears when folded down or swing against the wall. Min. length when retracted: 48″Max. length when extended: 82″Load capacity, fully extended: 10 lbs.Swings horizontally: 180oRotates vertically: 160o5/8″ 3-way female socketsComes with a 1/4″-3/8″ reversible stub